2003 Toyota Tundra service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications, torque values, and reference data
- Electrical diagnostics with full wiring diagrams
- Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more
- Diagnostic trouble codes and troubleshooting flow
- Maintenance schedules and fluid capacities
Trims covered
- Base, Automatic
- Base, Standard
- Limited
- SR5, 2D Pickup
- SR5, 4D Pickup Extra Cab, Automatic
- SR5, 4D Pickup Extra Cab, Standard
- SR5, 4D Pickup Extra Cab
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Maintenance & Lubrication
- Specifications
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Diagnostic Trouble Codes
- Technical Service Bulletins
- Wiring Diagrams
TOYOTA IS RECALLING MODEL YEAR 2000-2003 TUNDRA VEHICLES ORIGINALLY SOLD IN OR CURRENTLY REGISTERED IN THE FOLLOWING STATES: CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, KENTUCKY, MAINE, MARYLAND, MASSAC
SEPARATION OF THE SPARE TIRE AND DIMINISHED BRAKE CAPACITY COULD INCREASE THE RISK OF A CRASH.
TOYOTA IS ASKING OWNERS OF THE AFFECTED VEHICLES TO REMOVE THE SPARE TIRE FROM UNDER THE VEHICLE UNT
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2010-2016 4Runner, 2003-2006 Tundra, 2003-2013 Corolla, 2009-2010 Corolla Matrix, 2004-2005 RAV4, 2002-2007 Sequoia, 2011-2013 Si
An inflator explosion may result in sharp metal fragments striking the driver or other occupants res
Toyota will notify owners. Depending on the vehicle model, dealers will replace the front driver in
ON CERTAIN SPORT UTILITY VEHICLES, DUE TO A MANUFACTURING ISSUE IN THE FRONT SUSPENSION LOWER BALL JOINT, THERE IS A POSSIBILITY THAT THE SURFACE OF THE BALL OF THE JOINT MAY HAVE BEEN SCRATCHED. THE
THE LOWER BALL JOINT MAY SEPARATE FROM THE KNUCKLE CAUSING LOSS OF STEERING CONTROL AND A CRASH COUL
DEALERS WILL REPLACE THE FRONT SUSPENSION LOWER BALL JOINTS FREE OF CHARGE. THE RECALL BEGAN ON JUL
Toyota Motor Engineering & Manufacturing (Toyota) notified the agency on May 13, 2015 that they are recalling certain model year 2004 Sequoia vehicles manufactured August 18, 2003, to August 19, 2004,
In the event of a crash necessitating deployment of the passenger's frontal air bag, the inflator co
2003-2004 Corolla and Corolla Matrix vehicles that are recalled under both 15V-043 and 15V-285 are u
Toyota Motor Engineering & Manufacturing (Toyota) notified the agency on May 13, 2015, that they are recalling 2005-2007 Lexus SC, Toyota Corolla, Corolla Matrix, Sequoia, and Pontiac Vibe, and 2005-2
In the event of a crash necessitating deployment of the passenger's frontal air bag, the inflator co
2003-2004 Corolla and Corolla Matrix vehicles that are recalled under both 15V-043 and 15V-286 are u
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2002-2005 Lexus SC and Toyota Sequoia, 2003-2005 Toyota Corolla and Tundra, and 2003-2007 Pontiac Vibe vehicles. These vehicles
An inflator explosion may result in sharp metal fragments striking the driver or other occupants res
Toyota will notify the Toyota and Lexus owners. General Motors will notify the Pontiac Vibe owners.
DOPE, INC. IS RECALLING 42,540 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONF
DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.
DOPE, INC. WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE S
CERTAIN PICKUP TRUCKS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 225, 'CHILD RESTRAINT ANCHORAGE SYSTEMS.' THESE VEHICLES HAVE A MANUAL AIR BAG ON-OFF SWITCH TO
THIS STANDARD ESTABLISHES REQUIREMENTS FOR CHILD RESTRAINT ANCHORAGE SYSTEMS TO ENSURE THEIR PROPER
DEALERS WILL REMOVE THE MANUAL AIR BAG ON-OFF SWITCH, REPLACE THE OWNER'S MANUAL, AND AFFIX A NEW SU
The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and remain on a painted vehicl
To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is to shield the disc brake rotor from weather elements and in
Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an exposed vehicle, especially the horizontal areas such as the hood
Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces. This material protects from acid rain, environmental fallout, and rail contamination. Follow the Removal Procedure i
Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train wheels, exposure to heavy machinery facilities, grinding, welding, etc. This type of contamination can be identified by the
The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and remain on a painted vehicl
To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is to shield the disc brake rotor from weather elements and in
Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an exposed vehicle, especially the horizontal areas such as the hood
Showing the 8 most recent of 82 technical service bulletins on file with NHTSA.
MY WIFE AND I WERE TRAVELING NORTH ON HWY 49 FROM OAKHURST TO MARIPOSA, CALIFORNIA. THE HIGHWAY SURFACE WAS WET AND SLICK AS WE HAD JUST EXPERIENCED OUR FIRST RAIN OF THE SEASON. OUR TOYOTA TUNDRA T
TAKATA RECALL, I WAS INVOLVED IN A COLLISION WITH MY TOYOTA TUNDRA WHEN A NISSAN ALTIMA FAILED TO STOP FOR A STOP SIGN. AT WITCH POINT MY AIR BAGS DID NOT GO OFF. THE TRUCK IS TOTALED AND SO WAS THE N
TAKATA RECALL, I WAS INVOLVED IN A COLLISION WITH MY TOYOTA TUNDRA WHEN A NISSAN ALTIMA FAILED TO STOP FOR A STOP SIGN. AT WITCH POINT MY AIR BAGS DID NOT GO OFF. THE TRUCK IS TOTALED AND SO WAS THE N
TAKATA RECALL, I WAS INVOLVED IN A COLLISION WITH MY TOYOTA TUNDRA WHEN A NISSAN ALTIMA FAILED TO STOP FOR A STOP SIGN. AT WITCH POINT MY AIR BAGS DID NOT GO OFF. THE TRUCK IS TOTALED AND SO WAS THE N
TRAVELING ON HWY 11. 4 CARS AHEAD SUDDENLY STOP. I HAD 3 CHOICES: HIT THE CAR IN FRONT OF ME. GO INTO ON COMING TRAFFIC, OR HEAD OFF THE SIDE OF THE ROAD INTO THE BAYOU. MISSED THE OPPORTUNITY OF THE
Showing the 5 most serious of 524 complaints filed with NHTSA.
